./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/config/TaipanReach.xml -i ../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 83658644ab59c175befe18129a61686a7f8ef5283dc72c7f2a03865a8223d162 ............................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-29 04:35:29,452 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-29 04:35:29,455 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-29 04:35:29,493 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-29 04:35:29,495 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-29 04:35:29,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-29 04:35:29,503 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-29 04:35:29,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-29 04:35:29,510 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-29 04:35:29,516 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-29 04:35:29,517 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-29 04:35:29,519 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-29 04:35:29,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-29 04:35:29,523 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-29 04:35:29,526 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-29 04:35:29,530 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-29 04:35:29,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-29 04:35:29,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-29 04:35:29,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-29 04:35:29,545 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-29 04:35:29,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-29 04:35:29,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-29 04:35:29,553 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-29 04:35:29,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-29 04:35:29,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-29 04:35:29,564 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-29 04:35:29,564 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-29 04:35:29,567 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-29 04:35:29,567 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-29 04:35:29,569 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-29 04:35:29,570 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-29 04:35:29,571 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-29 04:35:29,573 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-29 04:35:29,575 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-29 04:35:29,577 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-29 04:35:29,577 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-29 04:35:29,578 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-29 04:35:29,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-29 04:35:29,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-29 04:35:29,580 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-29 04:35:29,581 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-29 04:35:29,582 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-29 04:35:29,623 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-29 04:35:29,623 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-29 04:35:29,624 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-29 04:35:29,624 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-29 04:35:29,625 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-29 04:35:29,625 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-29 04:35:29,625 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-29 04:35:29,625 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-29 04:35:29,626 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-29 04:35:29,626 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-29 04:35:29,626 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-29 04:35:29,626 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-29 04:35:29,627 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-29 04:35:29,627 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-29 04:35:29,627 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-29 04:35:29,628 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-29 04:35:29,628 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-29 04:35:29,629 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-29 04:35:29,629 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-29 04:35:29,629 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-29 04:35:29,629 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-29 04:35:29,630 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-29 04:35:29,630 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-29 04:35:29,630 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-29 04:35:29,630 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-29 04:35:29,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-29 04:35:29,631 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-29 04:35:29,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-29 04:35:29,631 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-29 04:35:29,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-29 04:35:29,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:35:29,632 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-29 04:35:29,632 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-29 04:35:29,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-29 04:35:29,633 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-29 04:35:29,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-29 04:35:29,633 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-29 04:35:29,634 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-29 04:35:29,634 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-29 04:35:29,634 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 83658644ab59c175befe18129a61686a7f8ef5283dc72c7f2a03865a8223d162 [2021-10-29 04:35:29,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-29 04:35:29,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-29 04:35:29,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-29 04:35:29,942 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-29 04:35:29,946 INFO L275 PluginConnector]: CDTParser initialized [2021-10-29 04:35:29,947 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/../../sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound2.c [2021-10-29 04:35:30,019 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/data/55f328999/bfb74296dfdf42a796031e93a91c0f25/FLAGd8cd4aa82 [2021-10-29 04:35:30,580 INFO L306 CDTParser]: Found 1 translation units. [2021-10-29 04:35:30,581 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound2.c [2021-10-29 04:35:30,592 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/data/55f328999/bfb74296dfdf42a796031e93a91c0f25/FLAGd8cd4aa82 [2021-10-29 04:35:30,923 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/data/55f328999/bfb74296dfdf42a796031e93a91c0f25 [2021-10-29 04:35:30,926 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-29 04:35:30,928 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-29 04:35:30,929 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-29 04:35:30,930 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-29 04:35:30,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-29 04:35:30,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:35:30" (1/1) ... [2021-10-29 04:35:30,935 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77f0bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:30, skipping insertion in model container [2021-10-29 04:35:30,936 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.10 04:35:30" (1/1) ... [2021-10-29 04:35:30,943 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-29 04:35:30,958 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-29 04:35:31,153 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound2.c[555,568] [2021-10-29 04:35:31,170 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:35:31,179 INFO L203 MainTranslator]: Completed pre-run [2021-10-29 04:35:31,192 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/sv-benchmarks/c/nla-digbench-scaling/geo1-u_valuebound2.c[555,568] [2021-10-29 04:35:31,199 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-29 04:35:31,216 INFO L208 MainTranslator]: Completed translation [2021-10-29 04:35:31,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:31 WrapperNode [2021-10-29 04:35:31,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-29 04:35:31,221 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-29 04:35:31,221 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-29 04:35:31,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-29 04:35:31,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:31" (1/1) ... [2021-10-29 04:35:31,241 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:31" (1/1) ... [2021-10-29 04:35:31,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-29 04:35:31,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-29 04:35:31,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-29 04:35:31,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-29 04:35:31,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:31" (1/1) ... [2021-10-29 04:35:31,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:31" (1/1) ... [2021-10-29 04:35:31,290 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:31" (1/1) ... [2021-10-29 04:35:31,295 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:31" (1/1) ... [2021-10-29 04:35:31,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:31" (1/1) ... [2021-10-29 04:35:31,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:31" (1/1) ... [2021-10-29 04:35:31,307 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:31" (1/1) ... [2021-10-29 04:35:31,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-29 04:35:31,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-29 04:35:31,314 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-29 04:35:31,314 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-29 04:35:31,316 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:31" (1/1) ... [2021-10-29 04:35:31,323 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-29 04:35:31,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:35:31,347 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-29 04:35:31,368 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-29 04:35:31,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-29 04:35:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-29 04:35:31,399 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-29 04:35:31,399 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-29 04:35:31,787 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-29 04:35:31,788 INFO L299 CfgBuilder]: Removed 13 assume(true) statements. [2021-10-29 04:35:31,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:35:31 BoogieIcfgContainer [2021-10-29 04:35:31,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-29 04:35:31,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-29 04:35:31,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-29 04:35:31,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-29 04:35:31,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.10 04:35:30" (1/3) ... [2021-10-29 04:35:31,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1378b88c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:35:31, skipping insertion in model container [2021-10-29 04:35:31,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.10 04:35:31" (2/3) ... [2021-10-29 04:35:31,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1378b88c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.10 04:35:31, skipping insertion in model container [2021-10-29 04:35:31,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:35:31" (3/3) ... [2021-10-29 04:35:31,800 INFO L111 eAbstractionObserver]: Analyzing ICFG geo1-u_valuebound2.c [2021-10-29 04:35:31,806 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-29 04:35:31,806 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-29 04:35:31,875 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-29 04:35:31,886 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-29 04:35:31,886 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-29 04:35:31,904 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:35:31,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-10-29 04:35:31,913 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:35:31,914 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-10-29 04:35:31,915 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:35:31,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:35:31,939 INFO L85 PathProgramCache]: Analyzing trace with hash 2944441, now seen corresponding path program 1 times [2021-10-29 04:35:31,950 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:35:31,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594531274] [2021-10-29 04:35:31,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:35:31,953 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:35:32,061 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 04:35:32,062 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1760013055] [2021-10-29 04:35:32,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:35:32,063 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:35:32,063 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:35:32,065 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:35:32,107 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-29 04:35:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-29 04:35:32,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-29 04:35:32,178 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-29 04:35:32,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:35:32,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-10-29 04:35:32,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-29 04:35:32,481 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-10-29 04:35:32,481 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594531274] [2021-10-29 04:35:32,481 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-10-29 04:35:32,482 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760013055] [2021-10-29 04:35:32,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760013055] provided 2 perfect and 0 imperfect interpolant sequences [2021-10-29 04:35:32,484 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-10-29 04:35:32,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2021-10-29 04:35:32,488 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136200471] [2021-10-29 04:35:32,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-29 04:35:32,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-29 04:35:32,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-29 04:35:32,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-29 04:35:32,521 INFO L87 Difference]: Start difference. First operand has 12 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 11 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:35:32,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-29 04:35:32,640 INFO L93 Difference]: Finished difference Result 25 states and 34 transitions. [2021-10-29 04:35:32,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-29 04:35:32,642 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-10-29 04:35:32,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-29 04:35:32,650 INFO L225 Difference]: With dead ends: 25 [2021-10-29 04:35:32,651 INFO L226 Difference]: Without dead ends: 12 [2021-10-29 04:35:32,660 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-10-29 04:35:32,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2021-10-29 04:35:32,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 8. [2021-10-29 04:35:32,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 7 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:35:32,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 8 transitions. [2021-10-29 04:35:32,699 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 8 transitions. Word has length 4 [2021-10-29 04:35:32,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-29 04:35:32,700 INFO L470 AbstractCegarLoop]: Abstraction has 8 states and 8 transitions. [2021-10-29 04:35:32,700 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.2) internal successors, (6), 4 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-29 04:35:32,701 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 8 transitions. [2021-10-29 04:35:32,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2021-10-29 04:35:32,702 INFO L505 BasicCegarLoop]: Found error trace [2021-10-29 04:35:32,702 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-10-29 04:35:32,740 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-29 04:35:32,922 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:35:32,922 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-29 04:35:32,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-29 04:35:32,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1823395634, now seen corresponding path program 1 times [2021-10-29 04:35:32,923 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-29 04:35:32,923 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006360638] [2021-10-29 04:35:32,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:35:32,924 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-29 04:35:32,960 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-29 04:35:32,961 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [475915123] [2021-10-29 04:35:32,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-29 04:35:32,963 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:35:32,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/z3 [2021-10-29 04:35:32,964 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-29 04:35:33,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-29 04:35:33,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:35:33,060 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-29 04:35:33,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-29 04:35:33,097 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-29 04:35:33,097 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-29 04:35:33,099 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:35:33,101 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-29 04:35:33,141 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-29 04:35:33,318 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-29 04:35:33,322 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-29 04:35:33,325 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-29 04:35:33,341 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.10 04:35:33 BoogieIcfgContainer [2021-10-29 04:35:33,342 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-29 04:35:33,342 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-29 04:35:33,342 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-29 04:35:33,343 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-29 04:35:33,343 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.10 04:35:31" (3/4) ... [2021-10-29 04:35:33,345 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-29 04:35:33,384 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/witness.graphml [2021-10-29 04:35:33,385 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-29 04:35:33,387 INFO L168 Benchmark]: Toolchain (without parser) took 2457.43 ms. Allocated memory was 125.8 MB in the beginning and 180.4 MB in the end (delta: 54.5 MB). Free memory was 97.2 MB in the beginning and 142.2 MB in the end (delta: -45.0 MB). Peak memory consumption was 9.2 MB. Max. memory is 16.1 GB. [2021-10-29 04:35:33,387 INFO L168 Benchmark]: CDTParser took 0.99 ms. Allocated memory is still 125.8 MB. Free memory is still 79.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:35:33,388 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.47 ms. Allocated memory is still 125.8 MB. Free memory was 96.9 MB in the beginning and 98.5 MB in the end (delta: -1.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-29 04:35:33,389 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.76 ms. Allocated memory is still 125.8 MB. Free memory was 98.5 MB in the beginning and 97.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:35:33,390 INFO L168 Benchmark]: Boogie Preprocessor took 40.56 ms. Allocated memory is still 125.8 MB. Free memory was 97.1 MB in the beginning and 96.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:35:33,391 INFO L168 Benchmark]: RCFGBuilder took 476.78 ms. Allocated memory is still 125.8 MB. Free memory was 96.0 MB in the beginning and 82.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-29 04:35:33,392 INFO L168 Benchmark]: TraceAbstraction took 1549.63 ms. Allocated memory was 125.8 MB in the beginning and 180.4 MB in the end (delta: 54.5 MB). Free memory was 82.4 MB in the beginning and 144.3 MB in the end (delta: -61.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-29 04:35:33,392 INFO L168 Benchmark]: Witness Printer took 42.49 ms. Allocated memory is still 180.4 MB. Free memory was 144.3 MB in the beginning and 142.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-29 04:35:33,396 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.99 ms. Allocated memory is still 125.8 MB. Free memory is still 79.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 288.47 ms. Allocated memory is still 125.8 MB. Free memory was 96.9 MB in the beginning and 98.5 MB in the end (delta: -1.6 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 49.76 ms. Allocated memory is still 125.8 MB. Free memory was 98.5 MB in the beginning and 97.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 40.56 ms. Allocated memory is still 125.8 MB. Free memory was 97.1 MB in the beginning and 96.0 MB in the end (delta: 1.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 476.78 ms. Allocated memory is still 125.8 MB. Free memory was 96.0 MB in the beginning and 82.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1549.63 ms. Allocated memory was 125.8 MB in the beginning and 180.4 MB in the end (delta: 54.5 MB). Free memory was 82.4 MB in the beginning and 144.3 MB in the end (delta: -61.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 42.49 ms. Allocated memory is still 180.4 MB. Free memory was 144.3 MB in the beginning and 142.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 18]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L23] unsigned int z, k; [L24] long long x, y, c; [L25] z = __VERIFIER_nondet_uint() [L13] COND FALSE !(!cond) [L27] k = __VERIFIER_nondet_uint() [L13] COND FALSE !(!cond) [L30] x = 1 [L31] y = z [L32] c = 1 [L34] COND TRUE 1 [L16] COND FALSE !(!(cond)) [L37] COND TRUE !(c < k) [L46] x = x * (z - 1) [L16] COND TRUE !(cond) [L18] reach_error() - UnprovableResult [Line: 18]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 6 SDtfs, 9 SDslu, 12 SDs, 0 SdLazy, 13 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 SizeOfPredicates, 4 NumberOfNonLiveVariables, 50 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-10-29 04:35:33,447 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec683f55-fc4c-40aa-b616-d66efb3c18b8/bin/utaipan-SDwSMHVbGG/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...